Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 39.
  1. Library Resource
    Articles et Livres
    décembre, 1980
    Pérou, Colombie, Argentine, Mexique, Brésil, Amérique centrale, Amérique septentrionale, Amérique du Sud

    White mold, caused by the fungus Sclerotinia (Whetzelinia) sclerotiorum, is distributed worldwide and has more than 300 hosts. It infects flowers, cotyledons, seeds, leaves or injured plant tissue. The disease can be controlled by crop rotation, flooding, reduced seeding rates, application of chemical products in the middle of the flowering period, modifying plant architecture and the use of resistant var. Many soil microorganisms are associated with sclerotia and may cause them to degrade or fan to germinate. The symptoms and damage caused by the disease are illustrated in color.

  2. Library Resource
    Articles et Livres
    décembre, 1980
    Pérou, Colombie, Argentine, Mexique, Brésil, Amérique centrale, Amérique septentrionale, Amérique du Sud

    White mold, caused by the fungus Sclerotinia (Whetzelinia) sclerotiorum, is distributed worldwide and has more than 300 hosts. It infects flowers, cotyledons, seeds, leaves or injured plant tissue. The disease can be controlled by crop rotation, flooding, reduced seeding rates, application of chemical products in the middle of the flowering period, modifying plant architecture and the use of resistant var. Many soil microorganisms are associated with sclerotia and may cause them to degrade or fan to germinate. The symptoms and damage caused by the disease are illustrated in color.

  3. Library Resource
    Rapports et recherches
    décembre, 1990
    Guatemala, Colombie, Équateur, Pérou, Panama, Honduras, Amérique du Sud, Amérique centrale
  4. Library Resource
    Rapports et recherches
    décembre, 1978
    Colombie, Équateur, Bolivie, Pérou, Venezuela, Nicaragua, Amérique du Sud, Amérique centrale
  5. Library Resource
    Rapports et recherches
    décembre, 1990
    Pérou, Amérique du Sud, Amérique centrale

    Anthropological work carried out by the PROFRIZA project in Cusco over 2 cropping seasons, between 1988-90, are reported. The status of bean cultivation in the region was assessed, as well as the experience acquired in seed production, small farmer management of farming activities, and the integration of farming communities that have old ways of exchanging products and services. Appropriate technology to promote crop improvement was identified, and crop management aimed at achieving good results on just one field, instead of several fields, and perhaps with low yields.

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